Scarce Vapourer Orgyia recens
Wingspan 35-40mm (male).
Like its close relative The Vapourer (Orgyia antiqua), the females of this species are wingless.
Nowadays quite rare and confined to a few locations in the east of England, it was formerly quite widespread.
The adults appear in June and July, and the colourful hairy larvae feed over the winter on a range of deciduous trees such as hawthorn (Crataegus) and sallow (Salix).